Photogrey Lenses (Photochromic Grey)
What Photogrey Lenses Are
Photogrey lenses are photochromic lenses that contain special molecules which react to ultraviolet (UV) light. When exposed to sunlight, these molecules change structure and darken the lens to a neutral grey tint, acting like sunglasses. When you move indoors or away from UV light, the molecules reverse and the lenses become clear again. The grey tint provides true color perception — colors appear natural without the warm shift that brown tints produce. This makes photogrey lenses the most popular choice for people who want one pair of glasses for both indoor and outdoor use.
Key Benefits
- Automatically darkens to grey in sunlight (UV-activated)
- Returns to fully clear indoors within minutes
- True color perception — grey tint does not distort colors
- Eliminates the need to carry separate sunglasses
- Provides 100% UV protection when activated
- Comfortable in varying light conditions throughout the day
Who Should Use Photogrey Lenses
Photogrey lenses are ideal for anyone who frequently moves between indoors and outdoors — commuters, delivery personnel, teachers, sales professionals, and outdoor enthusiasts. They are especially convenient for people who dislike carrying or switching between prescription glasses and sunglasses. If you prefer a neutral, natural-looking tint that does not alter color perception, photogrey is the right choice over photobrown.
Technical Specifications
How It Works at Optiwar
Select any Optiwar spectacle frame and choose Photogrey during the prescription step. At Rs 350, the photochromic grey treatment is applied to both lenses. Indoors, your lenses stay clear. Step outside and they darken within about 30 seconds. They return to clear within 2-3 minutes when you go back inside. Our system configures the lens material based on your prescription automatically.
Frequently Asked Questions
Do photogrey lenses work inside a car?
Standard photochromic lenses respond to UV light. Since car windshields block most UV, photogrey lenses may not darken fully inside a car. For driving, polarized lenses or dedicated driving sunglasses are recommended.
How long do photogrey lenses last?
The photochromic molecules remain active for 2-3 years with normal use. Over time, the darkening response may gradually reduce. Lens replacement is recommended after 2-3 years for optimal performance.
What is the difference between photogrey and photobrown?
Photogrey darkens to a neutral grey tint for true color perception. Photobrown darkens to a warm brown/amber tint that enhances contrast. Grey is preferred for general use; brown is popular for driving and sports.
Get Photogrey Lenses (Photochromic Grey) with Your Frame
Choose any spectacle frame and select Photogrey Lenses during checkout. Free shipping across India.
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